9() DR BOFE' on the geognosy of GERMANY. 
that the great masses of Rock-salt occur, (Chester, Vic^ 
WiHczka, Comitat of Marmorosh in Hungary, &c.) ; but 
salt springs may issue also from some parts of the Old 
Red Sandstone. 
The Second Floetz Gypsum of the Germans is exactly 
the same as the Second Gypsum of France, England, and 
Ireland; the First Gypsum appears wanting in the two 
last countries. 
In Germany, and in the north-eastern and eastern parts 
of France, we find above the preceding formation, the 
Shell Limestone (Muschelkalkstein), a very distinct forma- 
tion of a greyish limestone, having a pretty perfect crystalline 
texture (Wurtzburg), and sometimes presenting something 
of an oolitic appearance, (Westphalia, Buckeburg, &c.) The 
petrifactions which it contains are, more especially tere- 
bratulites, pectinites, ammonites, encrinites, and organic 
remains resembling a kind of isis. In the south-western 
part of Germany (near Coburg, &c.), and in the Jura 
chain (Basel), this Limestone becomes a kind of Magnesian 
Limestone, with siliceous infiltrations, and loses its petri- 
factions almost entirely. I do not know that there is any 
deposit corresponding to this in England, although I see 
it could only be your Lias : but all that I have observed 
regarding the Lias of England and the northern coast of 
France, induces me to consider it as the undermost part of 
the Jura Limestone. Yet it might be that the Shell Lime- 
stone (Muschelkalkstein) of the Continent is represented 
in England by some thin inferior beds of the Lias. 
The Jura Limestone of France and Germany corresponds 
exactly with your Lias, Oolites, Forest Marl, Cornbrash, 
Limestone, and Clunch Clay. All these various deposits 
are found in those countries. The Lias abounds in the 
north of France ; the Oolites are found on the northern 
border of the Hartz, near Hildesheim, and near Goslar ; 
